Henry was born to Grace and Manley Yewbeam in 1905.
Charlie Bone and the Time Twister
After being tricked by Ezekiel into looking into the Time Twister, Henry finds himself travelling to the year 2003. He meets Charlie Bone, his distant relative, who temporarily hides him in the Music Tower to keep the Bloors from finding out about him.
Henry and the Guardians of the Lost
James is Henry's brother. Though Henry was born first, because of his trip through time Henry looks biologically younger than James. In his first life, Henry loved his brother very much and took care of him.
Pearl is James Yewbeam's housekeeper, and Henry's minder.
Almost two years after his arrival in the 21st century, Henry considers Charlie his best friend, and always can't wait for him to visit at Ocean View. Although Charlie is technically his great-great-nephew, Henry thinks of him as his cousin.
Henry meets Ankaret in the Littles' House. Their frienship does not get off to a good start, but eventually Ankaret begins to warm up to Henry. In Henry and the Guardians of the Lost, it is hinted that Henry may have romantic feelings for Ankaret.
Jenny Nimmo announced in March of 2014 on her Twitter Page that a book about Henry was in progress.